.left {
    width: 10%;
    min-width: 10%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    flex-direction: column;
}

.right {
    width: -webkit-fill-available;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    flex-direction: column;
}

.left-top {
    position: absolute;
    top: 0px;
    background-color: #FFFFFF;
    width: 100%;
}

.left-top-btn {
    position: relative;
    cursor: pointer;
    border-width: 0;
    background-color: rgba(150, 150, 150, 0.5);
    height: 30px;
    width: 100%;
}

.btn-margin {
    margin-top: 5px;
}

.left-btn {
    margin-bottom: 10px;
    cursor: pointer;
    border-width: 0;
    background-color: rgb(233, 219, 224);
}

.vertical-bar {
    height: 100%;
    width: 2px;
    background-color: rgb(180, 179, 179);
}

.horizontal-bar {
    width: 100%;
    height: 2px;
    background-color: rgb(223, 179, 179);
}

.login,
.files,
.tools,
.content {
    display: none;
}

.index {
    display: block;
}

.right-content {
    height: 100%;
    width: 100%;
}

.login-item {
    margin-top: 10px;
    margin-bottom: 10px;
    width: 100px;
}

.files-item {
    display: flex;
    flex-direction: row;
    align-items: center;
    position: relative;
    justify-content: start;
    margin-bottom: 10px;
    height: 70px;
    padding: 5px;
    width: 90%;
}



html,
body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    position: relative;
}

body {
    display: flex;
    flex-direction: row;
}